Visible-Light-Mediated Controlled Radical Branching Polymerization in Water

被引：40

作者：

Kapil, Kriti ^{[1
]}

Szczepaniak, Grzegorz ^{[1
,2
]}

Martinez, Michael R. R. ^{[1
]}

Murata, Hironobu ^{[1
]}

Jazani, Arman Moini ^{[1
]}

Jeong, Jaepil ^{[1
]}

Das, Subha R. R. ^{[1
,3
]}

Matyjaszewski, Krzysztof ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Dept Chem, 4400 Fifth Ave, Pittsburgh, PA 15213 USA

[2] Univ Warsaw, Fac Chem, Pasteura 1, PL-02093 Warsaw, Poland

[3] Carnegie Mellon Univ, Ctr Nucl Acids Sci & Technol, 4400 Fifth Ave, Pittsburgh, PA 15213 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2023年 / 62卷 / 10期

关键词：

ATRP; Bioconjugate; Hyperbranched; Inibramer; Polymethacrylate; CONDENSING VINYL POLYMERIZATION; HYPERBRANCHED POLYMERS; CHAIN-GROWTH; POLYACRYLATES; PERSPECTIVES; MONOMERS;

D O I：

10.1002/anie.202217658

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hyperbranched polymethacrylates were synthesized by green-light-induced atom transfer radical polymerization (ATRP) under biologically relevant conditions in the open air. Sodium 2-bromoacrylate (SBA) was prepared in situ from commercially available 2-bromoacrylic acid and used as a water-soluble inibramer to induce branching during the copolymerization of methacrylate monomers. As a result, well-defined branched polymethacrylates were obtained in less than 30 min with predetermined molecular weights (36 000<M-n<170 000), tunable degree of branching, and low dispersity values (1.14 <= D <= 1.33). Moreover, the use of SBA inibramer enabled the synthesis of bioconjugates with a well-controlled branched architecture.

引用

页数：6

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